WO2016195221A1 - Photocatalytic apparatus and hvac equipment for vehicle comprising same - Google Patents

Abstract

The present invention relates to a photocatalytic apparatus and a heating, ventilating, and air conditioning (HVAC) equipment for a vehicle comprising the same and, more specifically, to a photocatalytic apparatus and HVAC equipment for a vehicle comprising the same, wherein the photocatalytic apparatus sterilizes and deodorizes an evaporator in addition to purifying air introduced into an HVAC case, and can continuously maintain the sterilization and deodorization functions by efficiently radiating heat generated from the photocatalytic apparatus.

Description

Photocatalyst device and vehicle air conditioner including the same

The present invention relates to a photocatalyst device and a vehicle air conditioner including the same, and more particularly, to purify the air flowing into the air conditioning case, sterilize and deodorize the evaporator, and efficiently dissipate heat generated from the photocatalyst device. The present invention relates to a photocatalyst device capable of continuously maintaining sterilization and deodorization performance and a vehicle air conditioner including the same.

A vehicle air conditioner is a device for cooling or heating an interior of a vehicle by heating or cooling the air in the vehicle or introducing the outside air into a vehicle, or circulating the air in the interior of the vehicle. The heater core for the heating operation and the air cooled or heated by the evaporator or the heater core are selectively blown to each part of the vehicle interior by using a blower mode switching door.

Meanwhile, as the penetration rate of the vehicle continues to increase and the time that the user is inside the vehicle is also increasing, research for maintaining comfort inside the vehicle is being continued, but the interior of the vehicle is narrow and sealed, which is easy to be polluted, As the pollution of the vehicle interior is further increased due to dust and various pollutants, a vehicle air purifier for purifying the indoor air of the vehicle has recently been developed.

As an example, Japanese Patent Application Publication No. 2549032 (Registration Date 1997.05.30, entitled: Automotive deodorizer air conditioner) has been disclosed with a vehicle deodorizer air conditioner.

1 is a cross-sectional view showing a conventional automotive deodorizer cooling device.

As shown in FIG. 1, a conventional vehicle deodorizer cooling apparatus includes an outside air inlet 21 and an inside air inlet 22 in a case 20, and the outside air inlet 21 and the inside air inlet 22 are provided. An intake door 23 for selectively opening and closing is provided to be rotatable. An actuator 30 is connected to the rotational shaft of the intake door 23 and controlled by the control means 31.

A downstream side of the intake door 23 is provided with a blower 25 for blowing air introduced from the internal and external air inlets 21 and 22 to the downstream side, and the blower 25 includes a fan 32 and the fan 32. ) Is composed of a motor 33 for rotating. On the downstream side of the blower 25, an evaporator 26 is installed to cool the air by exchanging heat with the air passing therethrough. In the air passage 28 on the downstream side of the evaporator 26, a photocatalyst filter 27 for generating active oxygen by irradiation of long wavelength light is provided.

The photocatalyst filter 27 generates active oxygen by irradiation of the ultraviolet lamp 29, and oxidatively decomposes the substance causing the odor to the oxidative compound of extremely low concentration. The ultraviolet lamp 29 is disposed between the evaporator 26 and the photocatalyst filter 27. On the downstream side of the photocatalyst filter 27, a metal catalyst filter 34 for removing ozone contained in the flowing air is provided. Unexplained reference numeral 35 is a temperature sensor, 36 is a sensor for sensing the odor level, 37 is a fan switch, 24 is an air discharge port.

However, in the conventional automotive deodorizer air conditioner, the ultraviolet lamp 29 used as a photocatalyst light source contains mercury therein, and mercury is harmful to the human body and cannot be applied to a vehicle due to various environmental requirements. There is a problem.

In addition, since the photocatalyst filter 27 is installed on the downstream side of the evaporator 26 to absorb and deodorize the odor generated in the evaporator 26, there is a problem in that the filter needs to be replaced by a decrease in the amount of air when the amount of dust is excessive.

In addition, the conventional automotive deodorizer air conditioner has a problem that the ultraviolet lamp 29 and the photocatalyst filter 27 as a separate component is deteriorated in assembly.

The present invention has been made to solve the above problems, an object of the present invention is to purify the air flowing into the air conditioning case, sterilization and deodorization of the evaporator, and efficiently removes heat generated from the photocatalyst device It is to provide a photocatalyst device and a vehicle air conditioner including the same that can maintain heat dissipation and deodorization performance continuously.

Particularly, an object of the present invention is to form a catalyst unit including a cylindrical support, and to form a distance between the light source and the bottom end of the support, so that the reach of the light irradiated from the light source is constant, thereby deodorizing and sterilizing ability. It is to provide a photocatalyst device and a vehicle air conditioner including the same to maximize the.

Photocatalyst device according to the present invention body; A light source unit irradiating ultraviolet (UV) light, including an LED and a substrate to which the LED is fixed, and fixed to the body; It is fixed to the body to generate a photocatalytic reaction by the light irradiated by the light source unit to generate peroxygen radicals, and to carry the catalyst liquefied in a gel form by adding a cylindrical support, a promoter and an acidic additive A catalyst unit including a coating layer fixed on the support body; And a heat dissipation unit provided in the light source unit for dissipating heat generated by the light source unit.

In particular, the catalyst unit is characterized in that the bottom end of the LED and the carrier is fixed to the body so that a constant distance.

The body may include a support part for supporting the substrate, a space forming part extending from the support part to form a separation distance between the LED and the catalyst part, and a catalyst part extending from the space forming part to fix the catalyst part. It is characterized by including a wealth.

In addition, the space forming portion is characterized in that it is formed inclined so as to widen in the light irradiation direction of the light source portion from the support portion.

In addition, the body is characterized in that the drain hole is formed to discharge the moisture.

In addition, the drain hole is characterized in that formed in the inclined lower side of the space forming portion in the state where the photocatalyst device is mounted.

In addition, the substrate is characterized in that the surface facing the catalyst portion is coated with a moisture-proof material.

In addition, the substrate is characterized in that the heat radiation substrate.

In addition, the catalyst is characterized in that the titanium oxide having a particle size of 10 nanometers to 60 nanometers, the surface area value of the titanium oxide is formed at 330m ² / g or more.

In addition, the promoter is characterized in that the alumina.

In addition, the air conditioning apparatus for a vehicle according to the present invention forms a space in which the introduced air is transported, the air conditioning case is formed vent is discharged air; An evaporator provided inside the air conditioning case; A heater core provided at a rear side of the air conditioning case in an air flow direction; And the photocatalyst device.

In addition, the photocatalyst device is characterized in that provided in the front of the evaporator in the air flow direction.

In addition, the vehicle air conditioner is characterized in that a predetermined area of the air conditioning case is hollow, the mounting hole is closed by the body is formed, the fixing portion for fixing with the air conditioning case is formed on the body.

In addition, the photocatalyst device is formed from the side where the fixing part is formed with the space forming part and the support part such that the catalyst part is located inside the air conditioning case and the space forming part is located outside the air conditioning case based on the outer surface of the air conditioning case. It is characterized by protruding.

In addition, the vehicle air conditioner is characterized in that the photocatalyst is mounted on one side of the air conditioning case.

The photocatalyst device and the vehicle air conditioner including the same purify and deodorize the evaporator while purifying the air flowing into the air conditioning case, and effectively dissipate heat generated from the photocatalyst device to improve sterilization and deodorization performance. There is an advantage that can be maintained continuously.

Particularly, the photocatalyst device and the vehicle air conditioner including the same according to the present invention form a catalyst part including a cylindrical carrier, and form a distance between the light source and the bottom end of the carrier so that the light irradiated from the light source is Constant reach has the advantage of maximizing deodorization and sterilization ability.

1 is a cross-sectional view showing a conventional deodorizer air conditioner for automobiles.

2 to 3 is a perspective view showing a photocatalyst device according to the present invention.

Figure 4 is an exploded perspective view showing a photocatalyst device according to the present invention.

5 is a cross-sectional view showing a photocatalyst device according to the present invention.

6 is a view showing a first heat radiation fin provided in the photocatalyst device according to the present invention.

7 is a view showing a second heat radiation fin provided in the photocatalyst device according to the present invention.

8 is a view showing a catalyst portion of the photocatalyst device according to the present invention.

9 is another perspective view of a photocatalyst device according to the present invention;

10 is a cross-sectional view showing a shape equipped with a photocatalyst device according to the present invention.

11 and 12 are a schematic view and a perspective view showing a vehicle air conditioner according to the present invention.

Hereinafter, the photocatalyst device 100 according to the present invention having the features as described above will be described in detail with reference to the accompanying drawings.

2 to 3 is a perspective view showing a photocatalyst device according to the present invention, Figure 4 is an exploded perspective view showing a photocatalyst device according to the present invention, Figure 5 is a cross-sectional view showing a photocatalyst device according to the invention, 6 is a view showing a first heat radiation fin provided in the photocatalyst device according to the present invention, Figure 7 is a view showing a second heat radiation fin provided in the photocatalyst device according to the present invention, Figure 8 is a photocatalyst device according to the present invention 9 is another perspective view showing a photocatalyst device according to the present invention, FIG. 10 is a cross-sectional view showing a shape in which the photocatalyst device is mounted according to the present invention, and FIGS. Schematic diagram and perspective view showing a vehicle air conditioner according to the invention.

2 to 10, the photocatalyst device 100 according to the present invention includes a body 110, a light source unit 120, a catalyst unit 130, and a heat dissipation unit.

The body 110 supports the light source unit 120 and the catalyst unit 130, and a fixing unit 111 for fixing the air conditioning case 300 of the vehicle air conditioning apparatus 1000 is formed to form the vehicle air conditioning apparatus 1000. It is fixed to the air conditioning case (300).

In this case, the fixing part 111 may be formed in various forms for fixing to the air conditioning case 300.

In addition, the body 110 includes a support part 112, a space forming part 113, and a catalyst accommodating part 114.

The support part 112 is a part that supports the substrate 122 of the light source part 120, and the space forming part 113 extends from the support part 112 toward the catalyst part 130 to the light source part 120. Light (light) irradiated from the LED 121 of the portion to form a distance spaced between the LED 121 and the catalyst 130 so as to be delivered to the catalyst 130.

In this case, the space forming unit 113 is formed to be inclined so as to widen in the light irradiation direction (the catalyst unit 130 forming direction) of the light source unit 120 from the support unit 112, the support unit 112 The light irradiated from the light source unit 120 mounted to the catalyst unit 130 is guided to the catalyst unit 130, thereby increasing the amount of catalytic reaction.

For this reason, the generation amount of peroxygen radicals increases, so that sterilization and deodorization effects can be increased.

The catalyst part accommodating part 114 is a part in which the catalyst part 130 is provided, and the air inside the air conditioning case 300 of the vehicle air conditioner 1000 is guided to the catalyst part 130 to the catalyst part 130. It is formed to be.

In particular, one surface of the catalyst unit 130 (opposite side of the side on which the support unit 112 is provided) should be formed to be exposed to the air conditioning case 300.

The catalyst part accommodating part 114 may be slidably coupled to detach the catalyst part 130 so that the catalyst part 130 may be easily installed and checked, and in addition, the catalyst part 130 may be mounted and detached. This could be in many different forms possible.

The light source unit 120 is fixed to the body 110 to irradiate ultraviolet (UV) light and includes an LED 121 (Light emitting diode) and a substrate 122 to which the LED 121 is fixed. ).

The LED 121 irradiates UVA (Ultra Violet-A) light or UVC (Ultra Violet-C) light having a wavelength of 400 nm or less, and solves the problem of mercury use, which was a problem in the conventional mercury lamp, Effective light irradiation is possible.

At this time, since UVA is relatively inexpensive, it is advantageous in terms of cost and effectively activates the photocatalytic reaction of the photocatalyst carrier, and UVC is relatively expensive but also activates the photocatalytic reaction and performs its own sterilization function. The sterilization efficiency can be improved.

The light source unit 120 may be provided with two or more corresponding to the size of the catalyst unit 130, the meaning of the two or more light source unit 120 is provided in the present invention LED 121 and the substrate 122 ) Are each provided with two or more, and one substrate 122 is defined as including both the two or more LED 121 is provided.

Of course, when the LED 121 is provided with two or more, both of the LED 121 for irradiating UVA (Ultra Violet-A) and UVC (Ultra Violet-C) may be provided.

The catalyst unit 130 generates a photocatalytic reaction by the light irradiated by the light source unit 120 to generate peroxygen radicals.

The catalyst unit 130 causes a photocatalytic reaction by the light irradiated from the light source unit 120, and by the oxidation of peroxygen radicals generated in the photocatalytic reaction, contaminants introduced into the air conditioning case 300 and To remove fungi, various contaminants and odors in the evaporator 410.

In more detail, when the catalyst unit 130 absorbs the light irradiated from the light source unit 120, electrons of a valence band (VB) filled with electrons absorb light energy so that the electrons are empty. Jump to Conduction Band (CB).

Holes, which are empty electron sites in valence bands, oxidize water molecules on their surfaces, bringing them back to their original state, and oxidized water molecules form OH radicals.

In addition, electrons, called excited electrons, excited at the conduction band, react with oxygen to produce strong oxidative peroxygen radicals.

Meanwhile, as shown in FIG. 8, the catalyst unit 130 of the photocatalyst 100 according to the present invention has a cylindrical carrier 131 and a catalyst liquefied into a gel form by adding a cocatalyst and an acidic additive. It includes a coating layer 132 is fixed by supporting the carrier 131.

At this time, the catalyst unit 130 is fixed to the body 110 such that the LED 121 of the light source unit 120 and the bottom end of the lower surface of the carrier 131 are a constant distance.

That is, the carrier 131 is formed in a cylindrical shape and has a circular bottom surface. The center of the bottom surface of the carrier 131 and the LED 121 are fixed to face each other so that the light emitted from the LED 121 as a light source is fixed. Constant reach ensures maximum deodorization and sterilization.

In other words, the catalyst unit 130 of the photocatalyst device 100 according to the present invention forms a cylindrical shape of the support member 131 forming the catalyst unit 130, and the reach distance of light irradiated by one light source. As a result, the deodorizing and sterilizing ability is maximized, and the manufacturing cost for manufacturing the photocatalyst device is reduced.

In addition, the carrier 131 is a shape including a plurality of pores therein, may be formed in a variety of structures including a mesh, it may be made of a material having a metal or elastic properties.

As the catalyst, it is provided with titanium oxide granulated in the size of 10 nanometers to 60 nanometers, the surface area value of the titanium oxide may be formed to 330m ² / g or more.

More specifically, titanium oxide (TiO ₂ ) used as a photocatalyst receives ultraviolet rays of 400 nm or less to generate peroxygen radicals, and the generated peroxygen radicals decompose organic substances to safe water and carbon dioxide.

The titanium oxide may be nano-particles to generate a large amount of peroxygen radical even when using a light source exhibiting a relatively weak ultraviolet wavelength.

Therefore, it is excellent in the ability to decompose organic matter, has a durable durability and stability to environmental changes, and has a semi-permanent effect. In addition, the peroxygen radical generated in a large amount can remove various substances such as odors and bacteria as well as organic matter.

The catalyst unit 130 forms a surface area value of the nano-particle titanium oxide of 330m ² / g or more, so that the number of particles that receive the same light energy per area compared to the conventional titanium oxide is present in a large amount of peroxygen radicals This increases.

* At this time, the cocatalyst may be alumina, in this case, there is an advantage in that the carrying capacity of the catalyst unit 130 can be further improved, and the fixing ability of the carrier 131 can be increased.

An example of the manufacturing process of the catalyst unit 130 will be described. After the titanium oxide is granulated to a size of 10 nanometers to 60 nanometers by firing at room temperature and drying at room temperature, a promoter composed of alumina is added thereto. Process in the liquid phase.

Thereafter, the liquid phase is secondary-processed according to the intended use to be supported on the carrier 131, and fixed to the carrier 131 through a secondary dry firing process.

As shown in FIGS. 5 to 6, the heat dissipation parts 141 and 142 are provided in the light source part 120 and are means for dissipating heat generated from the light source part 120. It may include.

The first heat dissipation fin 141 is provided on the substrate 122 to dissipate heat, and the light source 120 emits heat generated from the LED 121 and the substrate 122 to maintain a high amount of light. Since the first heat radiation fin 141 is important, the first heat radiation fin 141 is formed in a region excluding the region where the light is irradiated from the LED 121 to the catalyst unit 130.

The first heat dissipation fin 141 may be formed in various ways including a pin and a plate shape. When the first heat dissipation fin 141 is a plate shape, the first heat dissipation fin 141 may be formed on one side of the substrate 122 having the LED 121. It is formed side by side in the air flow direction.

Between the one side of the substrate 122 provided with the LED 121 in the body 110 and the catalyst unit 130 from the LED 121 by the space forming unit 113 of the body 110 There is a region in which light is irradiated to the catalyst unit 130, the first heat radiation fin 141 is provided to radiate heat through the air flowing in this region.

As shown in FIG. 6, the first heat dissipation fin 141 is provided in the central region in which the LED 121 is provided in the left and right directions (air flow direction) of the drawing, and the first heat dissipation fin 141 does not protrude, and the lower heat dissipation direction is lowered in both directions. It is formed to be inclined and can easily emit heat without blocking light emitted from the LED 121.

In addition, unlike the light source unit 120 including the LED 121 configured as one in the photocatalyst device 100 according to the present invention, even when the LED 121 is provided with two or more light to the catalyst unit 130 It can be freely formed in the region except for the region to irradiate.

In addition, as illustrated in FIG. 7, the heat dissipation unit may include a second heat dissipation fin 142 provided on an opposite side of the substrate 122 on which the LED 121 is provided.

The second heat dissipation fin 142 is formed on the opposite surface of the side where the first heat dissipation fin 141 and the LED 121 of the substrate 122 is provided, is formed on the substrate 122, or the substrate 122 Protruding from the support portion 112 of the body 110 for supporting) emits heat generated from the light source unit (120).

In particular, when the second heat radiation fins 142 are formed on the substrate 122, the body 110 has a predetermined region of the support 112 is hollow so that the second heat radiation fins 142 are inserted into and protrude outward. Hollow portion 112a may be formed.

Since the photocatalyst device 100 of the present invention is provided with one or both of the first heat dissipation fin 141 and the second heat dissipation fin 142, the photocatalytic device 100 can effectively emit heat generated from the LED 121, thereby improving the light quantity characteristics of the LED 121. It can be kept high and durability can be increased, so that sterilization and deodorization performance can be maintained continuously.

The first heat dissipation fin 141 and the second heat dissipation fin 142 are formed in close contact with both surfaces of the substrate 122, and through the configuration for fixing the substrate 122 to the support part 112 of the body 110. It may be fastened at one time.

In addition, the substrate 122 of the photocatalyst device 100 according to the present invention may be formed of a heat radiation substrate so that the substrate 122 itself may be a heat radiation portion.

The photocatalyst device 100 of the present invention is a structure for generating peroxygen radicals by photocatalytic reaction using the light source unit 120 and the catalyst unit 130, and a structure for adsorbing and deodorizing polluted air containing a conventional malodor. Compared with, there is no need to replace the filter separately, there is an advantage that can be used almost semi-permanently through the selection of the type of carrier or the appropriate on / off control of the light source (120).

In addition, the photocatalyst device 100 of the present invention, as shown in Figure 9, it is preferable that the drain hole (113a) is formed in the body 110 to discharge the moisture inside.

At this time, the drain hole 113a may be formed at the lower side of the space forming part 113 in a mounted state.

That is, in the state where the photocatalyst device 100 of the present invention is mounted on the air conditioning case 300 of the vehicle air conditioner 1000, the space forming part 113 in which the water is inclined is formed below the inclined portion 113. It is preferable to be guided to the drain hole 113a to further increase the water discharge effect.

In addition, the substrate 122 is coated with a moisture-proof material on the surface facing the catalyst 130, it is possible to prevent malfunction and failure by moisture.

Meanwhile, the vehicle air conditioner 1000 according to the present invention includes an air conditioner case 300, an evaporator 410, a heater core 420, and a photocatalyst device 100, as shown in FIGS. 10 to 12.

In the air conditioning case 300, the introduced air is transferred, and a vent 310 is formed to form a space in which the evaporator 410 and the heater core 420 are mounted, and the air is discharged.

More specifically, the air conditioning case 300 is formed with a vent 310 for discharging the air temperature controlled by the evaporator 410 and the heater core 420 into the vehicle interior.

The vent 310 includes a face vent 310, a defrost vent 310, and a floor vent 310.

The face vent 310 is a portion for discharging air to the front side (front seat) of the vehicle interior, the defrost vent 310 is a portion for discharging air toward the window of the vehicle interior, the floor vent 310 The air vent is discharged toward the bottom of the front seat of the vehicle interior, and the face vent 310, the defrost vent 310, and the floor vent 310 are controlled through openings of the respective mode doors 310d.

A fan 214 for blowing air may be provided at a side into which air of the air conditioning case 300 is introduced, and the inside and outside air inlets 211 and the outside air inlet 212 are selectively provided by the inside and outside air conversion doors 213. When the fan 214 is operated by opening and closing, the inside or outside air is transferred to the air conditioning case 300.

In more detail, the bet inlet 211 is communicated with the inside of the vehicle, the bet is introduced, the outside air inlet 212 is communicated with the outside of the vehicle is introduced into the outside air.

The internal and external air conversion doors 213 are provided inside the inlet duct to open and close the internal air inlet 211 and the external air inlet 212. The internal and external air conversion door 213 is operated according to the setting of the vehicle occupant to control the fresh air or bet to selectively flow.

The evaporator 410 is a cool refrigerant flows to cool the air, the heater core 420 is a heated cooling water flows to heat the air, the evaporator 410 and the heater core 420 in the air flow direction It is provided sequentially.

In addition, the air conditioning case 300 is provided with a temperature control door 320 to determine the degree that the air passing through the evaporator 410 passes through the heater core 420 therein.

In other words, the temperature control door 320 adjusts the opening degree of the warm air passage through which the air passing through the evaporator 410 passes through the heater core 420 and the cold air passage not passing through the heater core 420.

At this time, the photocatalyst device 100 has the characteristics as described above, it is preferable to sterilize and deodorize the evaporator 410 by being provided on the front side of the evaporator 410 in the air flow direction.

In addition, the vehicle air conditioner 1000 of the present invention is that the photocatalyst 100 is mounted on one side of the air conditioning case 300, and the mounting and detachment of the photocatalyst 100 is easy, and thus inspection and repair It is easy and has the advantage of minimizing the disturbance of the air flow in the air conditioning case 300 by the photocatalyst device 100.

In particular, in order to fix the air conditioning case 300 and the photocatalyst device 100, a predetermined area of the air conditioning case 300 is hollow and a mounting hole 300a is closed by the body 110, and the The fixing part 111 is formed in the body 110.

In FIG. 10, the fixing portion 111 is hollow, and an example in which a thread is formed on the hollow inner circumferential surface thereof. The air conditioning case 300 is also hollow in a form corresponding to the fixing portion 111. A thread is formed on the hollow inner circumferential surface, and has been shown an example of being fixed by a separate fastening means 500.

At this time, it is preferable that the fixing part 111 protrudes from the side on which the catalyst support part 112 of the space forming part 113 is formed.

That is, the catalyst unit 130 is located inside the air conditioning case 300 and the space forming unit 113 is located outside the air conditioning case 300 based on the outer surface of the air conditioning case 300.

In this way, the vehicle air conditioner 1000 of the present invention is located in the air conditioning case 300 to purify the air while effectively purifying the air, while protruding into the air conditioning case 300 Minimization can minimize interference with airflow.

In addition, the photocatalyst device 100 is disposed through the drain hole 113a formed in the space forming unit 113 by being located outside the air conditioning case 300 based on the outer surface of the air conditioning case 300. Moisture inside can be easily discharged to the outside. (In FIG. 10, the left side of the drawing is outside the air conditioning case 300, and the right side of the drawing is inside the air conditioning case 300)

The present invention is not limited to the above-described embodiments, and the scope of application is not limited, and various modifications can be made without departing from the gist of the present invention as claimed in the claims.

[Description of the code]

100: photocatalyst device

110: body

111: fixing part

112: support portion

112a: hollow part

113: space forming unit

113a: drain hole

114: catalyst receiving part

114a: stepped portion

120: light source

121: LED

122: substrate

130: catalyst unit

141: first heat radiation fin

142: second heat radiation fin

131: Carrier

132: coating layer

200: blower

211: bet inlet

12: outside air inlet

213: indoor and outdoor switching doors

214: Blowing fan

300: air conditioning case

300a: mounting hole

310: vent

310d: mode door

320: temperature control door

410: evaporator

420: heater core

500: fastening means

1000: vehicle air conditioner

Claims (15)

Body 110; A light source unit 120 to irradiate ultraviolet (UV) light, including an LED 121 and a substrate 122 to which the LED 121 is fixed, and fixed to the body 110; It is fixed to the body 110 to generate a photocatalytic reaction by the light irradiated by the light source unit 120 to generate peroxygen radicals, by adding a cylindrical carrier 131, a promoter and an acid additive A catalyst unit 130 including a coating layer 132 fixed by supporting a catalyst liquefied in a gel form on the carrier 131; And And a heat dissipation unit provided in the light source unit (120) for dissipating heat generated from the light source unit (120). The method of claim 1, The catalyst unit 130 Photocatalyst device, characterized in that the bottom end of the LED (121) and the carrier (131) is fixed to the body (110) so that a constant distance. The method of claim 1, The body 110 is A support part 112 for supporting the substrate 122, A space forming part 113 extending from the support part 112 to form a separation distance between the LED 121 and the catalyst part 130; A photocatalyst device comprising a catalyst part accommodating part (114) extending from the space forming part (113) to fix the catalyst part (130). The method of claim 3, wherein The space forming unit 113 is Photocatalyst device, characterized in that formed inclined so as to widen in the direction of light irradiation of the light source unit 120 from the support (112). The method of claim 4, wherein The body 110 is Photocatalyst device, characterized in that the drain hole (113a) is discharged water is formed. The method of claim 5, The drain hole 113a Photocatalyst device, characterized in that formed in the inclined lower side of the space forming portion 113 in the state where the photocatalyst device (100) is mounted. The method of claim 1, The substrate 122 is Photocatalyst device, characterized in that the surface facing the catalyst unit 130 is coated with a moisture-proof material. The method of claim 1, The substrate 122 is A photocatalyst device, characterized in that the heat dissipation substrate. The method of claim 1, The catalyst is Photocatalytic device comprising titanium oxide granulated to a size of 10 nanometers to 60 nanometers, the surface area value of the titanium oxide is formed at 330m ² / g or more. The method of claim 9, The promoter is It is an alumina photocatalyst device. An air conditioning case 300 forming a space in which the introduced air is conveyed and having a vent 310 for discharging air; An evaporator 410 provided inside the air conditioning case 300; A heater core 420 provided at a rear side of the air conditioning case 300 in an air flow direction; And A vehicle air conditioner comprising a photocatalyst device according to any one of claims 1 to 8. The method of claim 11, The photocatalyst device 100 Vehicle air conditioning apparatus, characterized in that provided in the front side of the evaporator in the air flow direction. The method of claim 11, The vehicle air conditioner 1000 A predetermined area of the air conditioning case 300 is hollow, and a mounting hole 300a is formed to be closed by the body 110. Vehicle air conditioning apparatus, characterized in that the fixing portion 111 for fixing with the air conditioning case 300 is formed in the body (110). The method of claim 13, The photocatalyst device 100 The fixing part (300) is positioned such that the catalyst part 130 is located inside the air conditioning case 300 and the space forming part 113 is located outside the air conditioning case 300 based on an outer surface of the air conditioning case 300. 111 is a vehicle air conditioning apparatus, characterized in that protruding from the side where the space forming portion 113 and the support portion 112 is formed. The method of claim 11, The vehicle air conditioner 1000 The photocatalyst device 100 is mounted on one side of the air conditioning case 300, characterized in that the vehicle air conditioner.

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